Tool-holding socket



April 1930.

w. R. PAIGE ET AL TOOL HOLDING SQCKET Filed Oct. 12., 1825 Patented Apr. 8, 1930 UNITED STATES PATENT F E WILLIAM ROBERT PAIGE, or BROOMHILL, AND JOHN HENRY HANSOEVOF HoLMLriA, ENGLAND v p TOOL-HOLDING SOCKET Application filed ct'ober'12, 1925, Serial No. 62,179, and in Great Britain October It, 1924.

a This invention relates to tool holding sock- V ets or sleeves of the kind wherein an inner socket'carrying the tool is capable of rotation within an outer socket and yet will rotate with the outer socket by the frictional engagement of their adjacent surfaces, and said inner socket being split whereby closure of its walls on to the tool for holding it is eiiected by said engagement. r

This invention is also directed to that type of holder in which means are provided for readily ejecting the tool, said" means comprising a cylindrical sleeve slidably mounted on the outer socket and adapted to strike a key disposed in a transverse slot in said socket.

The object of this invention is to provide an improved means for readily ejecting the tool and in some cases the inner socket also.

The socket has the whole of its exterior conical portion slit for a portion of its length,

said slits terminating in a transverse aperture, a cylindrical lower interior to said socket and a tapered upper interior at least of as great length as the said lower interior and said socket being capable of rotation in an interiorly tapered holder.

' Referring to the drawings filed herewith I Fig. 1 is a sectional elevation of one form of tool-holding socket made in accordance with this invention;

Fig. 2 is a similar view showing the socket tightly gripped within the holder; and

ig. 3 is a vertical section on the line AB,

Fig. 2. v

a is the socket which may be constituted by a drilling machine spindle and has a coni-. cal exterior b for the whole of its length and is shown loosely assembled in the holder 0, saidsockethavingacylindricalinteriord from the mouth upwards for a portion of its length and tapering for the remainder e where it merges into the transverse slot f usually provided in tool-holding sockets and as will be seen the socket a is rotatable within the holder 0. In the holder is also provided the usual transverseslot g and in this slot is loosely disposed a key it which normally rests on the anvil head 2' of the socket a, said key being adapted to release the socket from thethe flange in acts on the projecting ends of the key it, which in turn acts on the anvil head i of thesocket a, thus releasing the socket from the grip of the holder 0. Owing to the sleeve 7' being loosely supported by the key it around the holder 0, said sleeve can be held by the hand against rotation and manipulated to act on the key it whilst the holder and socket and tool are rotating.

In use, when a tool is inserted in the socket a and upward pressure applied to the tool,

which in turn transmits a likewise pressure to the socket a, a fairly tight grip is effected by the walls of the socket being caused to close onto the tool by the holder 0 and when the tool, as for example a twist drill, is applied to work on the holder being rotated, the socket and tool, owing to frictional grip, rotate with the holder, but the frictional. resistance of the work on the tool causes said tool to momentarily resist rotation, whereby, in conjunction with the pressure of the tool against the Work, this resistance causes a climbing tendency to be imparted to the tool with re spect to the socket and similarly to the socket a with respect to its holder c,thereby result-' as ing in a more intense frictional grip between i the socket and the holder and the socket and the tool which causes the socket and the tool to again rotate with the holder. For releasing the socket and tool, the sleeve is held and manipulated by hand by slidably lower ing it with force so as to act onthe key which Letters Patent is A tool holding socket member having the tion being slitted for a portion of its length, said slits terminatingin a transverse aperture, a cylindrical lower interior to said socket member and a tapered upper interior at least of as great length as the said lower interior and said-s eketmember being capable of retation in an interiorly tapered holder.

In testimony whereof, We aflix our signs,- tures. V 1o WILLIAM ROBERT PAIGE.

' JOHN HENRY HANSON. 

